FNAB-43

The FNAB-43 is an Italian designed and developed submachine gun manufactured from 1943 to 1945. The first prototype was built in 1942 and the ~1,000 built by the FNA-B according to Ian McCollum of Forgotten Weapons (Fabbrica Nazionale d'Armi di Brescia, "Brescia National Arms Factory", hence the name) were issued to German and Italian RSI (Repubblica Sociale Italiana) units fighting in Northern Italy. The FNAB-43 was an expensive weapon to manufacture as it used extensive milling and precision engineering in its manufacture.